18996915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{757}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 34928640

約数和(自身を除く): 15931725

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 239, 717, 757, 1195, 1673, 2271, 3585, 3785, 5019, 5299, 8365, 11355, 15897, 25095, 26495, 79485, 180923, 542769, 904615, 1266461, 2713845, 3799383, 6332305, 18996915]

約数ペア:

[(1, 18996915), (3, 6332305), (5, 3799383), (7, 2713845), (15, 1266461), (21, 904615), (35, 542769), (105, 180923), (239, 79485), (717, 26495), (757, 25095), (1195, 15897), (1673, 11355), (2271, 8365), (3585, 5299), (3785, 5019)]